Know Your Environment. Protect Your Health.

Nitrate

Woodridge Village

Nitrate, a fertilizer chemical, frequently contaminates drinking water due to agricultural and urban runoff, and discharges from municipal wastewater treatment plants and septic tanks. Excessive nitrate in water can cause oxygen deprivation in infants and increase the risk of cancer. Click here to read more about nitrate.

 

23

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.229 ppm53ND - 0.523 ppm
20190.222 ppm63ND - 0.715 ppm
20200.291 ppm32ND - 0.642 ppm
20210.494 ppm330.290 ppm - 0.669 ppm
20220.256 ppm440.187 ppm - 0.324 ppm
20230.273 ppm21ND - 0.546 ppm

ppm = parts per million

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.14 ppm

The EWG health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

EPA Maximum Contaminant
Level (MCL): 10 ppm

The legal limit for nitrate, established in 1962, was developed to protect infants from acute methemoglobinemia, a life-threatening disorder of oxygen transport in the body. This limit does not fully protect against the risk of cancer and harm to the developing fetus.

ppm = parts per million

All test results

Date Lab ID Result
2018-03-08NO3 J8C0598-01ND
2018-05-10NO3 J8E0776-010.274 ppm
2018-05-10NO3 J8E0775-010.523 ppm
2018-08-30NO3 J8H2704-01ND
2018-09-13NO3 J8I0851-010.348 ppm
2019-03-21NO3 J9C1297-010.278 ppm
2019-03-28NO3 J9C1582-01ND
2019-06-27NO3 J9F1707-010.341 ppm
2019-09-13NO3 J8I0851-02ND
2019-12-12NO3 J9L0812-010.715 ppm
2019-12-12NO3 J9L0811-01ND
2020-03-12NO3 S0000252330.232 ppm
2020-04-06N03 S000023272ND
2020-08-11NO3 S0000232500.642 ppm
2021-08-10NO3 S0000561460.290 ppm
2021-08-10NO3 S0000561420.522 ppm
2021-08-10NO3 S0000561630.669 ppm
2022-02-08NO3 S0000560870.187 ppm
2022-02-08NO3 S0000561030.324 ppm
2022-02-08N03 S0561030.324 ppm
2022-02-08N03 S0560870.187 ppm
2023-02-08NO3 S0137106ND
2023-02-21NO3 S01370930.546 ppm